3-1
Power Distribution
Power Distribution
The ADS1625/26EVM board requires various power sources for operation.
-
A dual
±
6-V dc supply
-
Two 5-V dc supply
-
A single 3-V dc supply
-
A single 8-V – 40-V dc supply
The simplest way to provide these voltages is to use the power connector
P4/J4 and derive the voltages elsewhere, preferably via linear supplies.
The pinout for this connector is shown in Table 3−1.
Table 3−1. Power Connector P4/J4
Signal
P4/J4 Pin Number
Signal
+VA
1
2
−VA
+5VA
3
4
−5VA
AGND
5
6
DGND
+1.8VD
7
8
VD1
+3.3VD
9
10
+5VD
Should the user decide to use a TI DSK, the digital requirements can be
supplied by the DSK.
Chapter 3
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